disk_space_alert.yml

- name: Playbook for Checking Disk Space and Alert
  hosts: all
  gather_facts: true
  user: ec2-user
  become: true
  vars_files:
    - vars/vars.yml
  tasks:
    - name: Check disk space usage
      shell: "df -h --output=pcent {{ disk_device }} | awk 'NR==2{gsub(/%/, \"\", $1); print $1}'"
      register: disk_usage
    - name: Print disk usage
      debug:
        var: disk_usage.stdout
    - name: Removing the Disk Space if it is greater than 80%
      shell: "docker image prune --all --force"
      when: disk_usage.stdout | int > 80
    - name: Disk Space of after removing the unwanted images
      shell: "df -h --output=pcent {{ disk_device }} | awk 'NR==2{gsub(/%/, \"\", $1); print $1}'"
      register: disk_usage_after_removal
    - name: Print disk usage
      debug:
        var: disk_usage_after_removal.stdout
    - name: Trigger webhook if disk usage exceeds 80%
      uri:
        url: "{{ webhook_url }}"
        method: POST
        body_format: json
        body:
          text: "Disk space of {{ inventory_hostname }} was eariler {{ disk_usage.stdout }} % . Now It is {{ disk_usage_after_removal.stdout}}% after the removing the unwanted images in {{ecs_cluster}}"
      when: disk_usage.stdout | int > 80
      vars:
        ecs_cluster: "{{ env_clusters[env] }}"